Hand machine for sealing caps to jars and cans



Aug. 28, 1928.

S. N. TEVANDER HAND MACHINE FOR SEALING CAPS TO JARS AND CANS 5 Sheets-Sheet 1 Filed March 31, 1925 I RUGTZM! waw 1 17221401436;

Aug. 28, 1928. 1,681,959

- s. N. TEVANDER HAND MACHINE FOR SEALING CAPS TO JARS AND CANS Filed March 51, 19 25 5 Sheets-Sheet 2 17712671157":- 5mm Jfjvmwaz" Aug. 28, 1928. 1,681,959

S. N. TEVANDER HAND MACHINE FOR SEALING CAPS TO JARS AND CANS Filed March 51, 1923 5 Sheets-Sheet 3 Siam/m JL jvanuiaz,

Patented Aug. 28, 1928.

UNITED STATES PATENT OFFICE.

SWAN NILS 'IEVANDER, OF MAYWOOD, ILLINOIS, ASSIGNOR TO SWAN METALLIC SEAL & CAP COMPANY, A CORPORATION OF ILLINOIS.

HAND MACHINE FOR SEALING CAPS TO JARS AND CANS.

Application filed March 31, 1923. Serial No. 629,181.

My invention relates to a machine for applying a cap onto a glass ar or a tin can or other suitable vessel, receptacle or container, in a manner making a seal on the edges of a cap that embraces the outside wall of the Vessel.

Reference will be had to the accompanying drawings in which Fig. 1 is an eleva-' tional view partly in section showing the machine applied to the top of a glass ar ready to Operate on the cap in sealing the same to the jar. Fig. 2 is an enlarged sec tional detail showing the cap on the jar ready to be sealed by the operation of the machine. Fig. 3 is a similar view to that of Fig. 'l, but after the sealing operation is completed. Fig. 4 shows the head of a vessel, receptacle or container after the sealing is completed.

Fig. 5 is a sectional view in the same direction as that of Fig. 1 showing the position of the parts at the completion of the operation of sealing. Fig. 6 is a view on line 66 of Fig. 5. Fig. 7 is a view on line 77 of Fig.

5. Fig. 8 is a view on line 8-8 of Fig. 5.

Fig. 9 is an elevational view showing the machine in the same position as that of Fig. 1 but in a direction at right angles to that of Fig. 1. Fig. 10 is an elevational view in the same direction as thatof Fig. 9, but at the completion of the sealing operation and showg g the parts in the same position as shown by The function of the machine is to change the form of the cap as shown in Figs. 1 and 2 into the form as shown by F igs.3, 4, and 5.

In the drawing 1 indicates a glass jar but this may be any sort of a container adapted to be capped by the means 'here shown.

2 indicates the outer shell or metal part of the cap when the metal is used and 3 indicates an elastic or compressive lining preferably made out of paper or similar product fixed to the metal 2 in any suitable manner whereby the lining 3 and metal 2 operate as a single element.

This cap is provided with an external bead 4 and an internal bead 5 and a turned over margin 6.

I provide the machine with the head block 7 which has a flange 8 fitting snugly down on the portion 9 of the cap and holding the cap in close fitting association with the top of the jar 1. This head block 7 is permanently fixed onto a vertical post 10 which is provided with a threaded portion 11 adv with the block 12 there jacent to the head block 7 on to which there is screwed a block 12 which may be clamped in any position upon the threads 11 by a clamping screw 13 passing through the lugs 14 on this block 12. Fixed to or integral are two'lugs 15 which carry hinge pins 16 which pass through connecting links 17 hinged into the ends 19 of two bell crank levers 20 which levers are hinged on pins 21 into two lugs 22 of a cruciform cross-head 23 which slides upward and downward on the post 10 under the influence of the movement of the levers 20.

The cross-head 23 is provided also with two lugs 24 which'carry two hinge pins 25 passing through links 26 and the links 26 are connected by the pins 27 to two lever arms 28 and these lever arms 28 are hinged at their upper ends by the pins 29 to a cross-beam 30 which also is mounted to slide vertically up- ,on the post 10. This cross-beam 30 is acted upon by a compression spring 31 also mounted on the post 10 and held thereon by nuts 32 screwed onto the threads 33 at the upper end of the post 10.

The lower ends of the levers 28 are provlded with two semi-circular gripper jaws 34 which have gripping shoulders 35 and vertical walls 36. These walls 36 are undercut at 37 as a clearance space into which the metal of the cap may flow in the act of sealing. The gripper approach approximately a concentric position in the function of sealing the cap to the jar and also to come into contact with the outside diameter of the block 7 as is indicated in Fig. 5, and this block acts as a guide for the jaws in the actual work of sealing the cap.

The operating levers 20 are provided with flared handle ends 38, see Fig. 1 adapted to be operated by the hand in the function of the machine. The position of the machine as shown in Figures 1 and 9 is just after the machine has been applied to a cap on a jar ready to proceed with the sealing operation. In the sealing operation the ends 38 of the lovers 20 are pushed apart, the operator using one hand on one lever and the other hand on the other lever pressing them in an outward and downward position to the position shown in Figures 5 and 10.

The first movement of the levers 20 from the position shown in Figs. 1 and 9 results in bringing the jaws 34 to contact their walls jaws 34 are intended to' A tight seal of, the cap to the jar.

. heads 4 and 5 and margin 6 in varying 36 to the side of the block 7 by the movement upward of the cross-head 23 through the links previously described and when this contact is made the further movement of the crosshead 23 upward causes the gripper jaws 34 to slide on the head block 7 and this causes the spring 31 to be compressed. Meantime the shoulder 35 of the jaws 34' has engaged the edge or margin 6 of the flange of the cap 2 and the walls 36 have embraced the outside of the margin enlarging in diameter. Then on further movement upward of the cross-head 23 the cross-beam 30 continues to compress the spring 31 until the jaws 34 have deformed the flange of the cap from that shown in Fig. 2 to that shown in Figs. 3 and 4. In the crimping or compressing or shortening of the flange of the cap the surplus metal of the beads 4 and 5 not being permitted to enlarge in diameter are forced inward and crowded into-the internal bead5 making the projection 39, snugly in contact with the wall of the jar as shown by Fig. 3 making a The quantity of material provided in the beads 4 and 5 is such that the inward flow of that which is forced inward by the mechanism as described is such that there is produced at 39 a complete tight fit all around the head of the jar, even though when several difierent jars may vary materially as to size of the surface of the outside wall of the jar.

The machine may be adjusted to crimp tihe egrees by the screwing upward or downward of the block 12 on the post 10 as'may be desired.

It is preferred that the outside or meal portion of the cap 2 be not permitted to come directly in contact with the walls of the vessel at. any point and the undercut groove 37 in the jaws 34 permits the margin 6 of the flange of the cap to retreat into this groove (see Fig. 5) and thus allow a clearance 40, (see Fig. 3) of the metal edge of the flange of the cap from at any time coming in contact with the wallet the jar thus permitting the whole strain of the stifiened flange of the cap by the crimping of the heads 4 and 5 and the margin 6 to be borne upon the lining material 3 making a complete and absolute seal of the parts.

What I claim is 1. In a machine of the class described, a head block adapted to fit on the top of a cap and hold the samedown upon the vessel to be sealed, gripper jaws for encircling a flange of the cap and the outside wall of the vessel to P be capped, a set of levers to which said gripper jaws are connected, a cross-beam to which said levers are hinged, a post secured in vertical arrangement into the said head block, said cross-beam mounted upon and arranged to slide vertically on the said post, a hinge pin 6 and prevented their menace block fixed to the said post, a sliding crosshead block mounted upon the said post to slide up and down vertically thereon, links connectedto the said levers and said cross head block, operating levers hinged on the said cross head block and connected by links to the said hinge pin block in a manner whereby the swinging of the operating levers moves the said cross head block toward and from the said head block, the said links which connect the cross head block with the levers of the jaws adapted to move the said jaws horizontally to and from each other and vertically in parallel relationship with the said post.

2. In a machine of the class described, a head block adapted to be mounted on the top of a cap to be sealed, a post extending vertically from the said head block and secured thereto, links hinged at one end in fixed relationship to the operating levers hinged at the other endsof head block mounted upon the said post and the said operating levers hinged in the said sliding cross head block, a set of gripper jaws adapted to embrace the side walls of the ca to be sealed, a set of levers to w ich the said gripper jaws are connected and provided with suitable fulcrums and connected by links to the said sliding cross head block.

3. In a device. of the class described, the combination with a head block, of a central post fixed thereto at right angles to the surface of the cap to be operated on, a sliding cross-head adapted to slide up and down the said post, operating pg hinged to the said cross-head, a block fixed to the said central post, a link connecting each lever with said block, a second set of links pivotally connected to said cross-head, a second set of levers pivotally attached to said second set of links and provided on one end with grip er jaws adapted to embrace the said head lock. a vcross-beam mounted to move vertically on the said post'said cross-beam being provided and the jarwith hinged connections for said second set I of levers, and a spring mounted on the said post and adapted to move the said crossbeam.

4. In a device of the class described, a head block mounted over the top of a cap for holding the cap on the vessel to be sealed, a support connected with the said head block, two relatively movable sliding members carried by said support, two opposed operating levers hinged to one of the said/members, two links connecting said support to said levers, two swinging levers hinged to the other of said sliding members and two gripper jaws carried by said swinging levers adapted to embrace and act upon the flange of the cap held by the holding means.

5. Ina machine of the class described, the combination with a head block for holding a esa 959 cap on the top of a jar to be sealed, of two gripper jaws adapted to embrace theflange of a cap held on the jar by the said head block, a set of swinging levers connected to and supporting at their lower ends the said gripper jaws, a sliding cross-beam to which the said swinging levers are hinged, supporting means secured to the said head block and upon which the said sliding cross-beam is mounted, a sliding cross-head also located upon the said supporting means two links coupling said cross-head to the saidswinging also mounted on said supporting means and 15 adjustable thereon to and from the said means for holding the cap on the jar, and two links coupling said hand operated levers to said second block.

Signed at Chicago, in the county of Cook 20 and State of Illinois, this 20th day of March, 1923.

SWAN NILS 'IEVANDER. 

